In theory, you could appear to be of a healthy weight externally. White fat is composed of visceral (found around the internal organs) and subcutaneous fat (visible just under the surface of the skin). This type of fat is that it is actually derived from white fat, the most common and plentiful type of fat in the body. Like brown fat, beige fat produces energy to create heat in the body. Its primary role is to store and provide energy for metabolic processes for everything from your heart beating to your legs sprinting.What most people don’t realise is that fat is an organ and it plays an incredibly important role in regulating our body size and ensuring our survival.To understand how this works, we need to first understand the different types of fat and their roles. Body fat, otherwise known as adipose tissue, is a normal constituent of every human body. Many people think that lean body mass refers only to muscle tissue, but it includes everything in your body that is not fat. This is why beige fat can be found in small quantities all over the body.Studies are currently being carried out to understand how we can activate these fat cells to help combat obesity. This occurs when the testosterone-to-estrogen ratio is skewed in favor of estrogen, even if the absolute estrogen level is not abnormally high. It is essential to continue working with a healthcare professional to monitor hormone levels and address any remaining imbalances. If I have high estrogen due to obesity, will losing weight always fix the problem? While weight loss is the primary and most effective treatment for high estrogen levels due to obesity, it may not always completely resolve the issue. As men age, their testosterone levels naturally decline, while their estrogen levels tend to remain relatively stable. Table 3 displays the subgroup analysis of the association between total testosterone level and VAI index. Men with a higher VAI index have a higher risk of declined testosterone level, or even testosterone deficiency, especially in aged men, or men without diabetes. However, these traditional indicators of obesity failed to accomplish these goals . Intriguingly, recent research has recognized that adipose tissue has complicated functions and not all adipose tissue is harmful to human health. Then, waist circumference (WC) was used to assess obesity-related sex hormone disorders, as it can easily evaluate abdominal obesity . Additionally, accumulation of adipose tissue can release pro-inflammatory cytokines, which can also decrease the secretion of testosterone by exerting inhibitory effects on the hypothalamic-pituitary-gonadal axis . Visceral fat is different from subcutaneous fat, which sits just under the skin. Insulin inhibits steroidogenesis, the process that produces testosterone in Leydig cells. High blood sugar, resulting from insulin resistance, causes increased inflammation. Leydig cells, which are responsible for testosterone production, are sensitive to inflammation. Once you start losing weight and shedding visceral fat, testosterone bounces back to normal levels. The risk of diseases such as type 2 diabetes, cardiovascular disease and high blood pressure all decrease significantly.One disadvantage of both BMI and body fat percentage is that it is incredibly hard to measure visceral fat. Muscle mass is therefore far more metabolically costly to synthesise and maintain than body fat, which requires little additional output.And the benefits maintaining higher levels of muscle relative to your body fat percentage is not purely aesthetic. BMI or Body Mass Index is based on your height and weight and measures if your weight is healthy.To calculate BMI, take your weight in kilos and divide it by your height in metres squared.Bodyfat percentage measures how much body fat you have relative to your lean body mass. Splits the body into three compartments, measuring fat mass, total body water contentand dry weight fat-free mass only. This includes your organs, skin, bone, fluid levels, food weight, and stored glycogen.We use a measure of lean body mass rather than total weight to assess each individual’s starting point and to create their initial nutrition plan.
